About brinzolamidea carbonic anhydrase(||) enzyme inhibitor, antiglaucoma.mechanism of action of brinzolamidebrinzolamide is a carbonic anhydrase enzyme inhibitor.it inhibits the enzyme present in the ciliary body epithelium of eye and reduces the formation of bicarbonate ions. which in turn reduces fluid transport and thus intraocular pressure.indications for brinzolamideopen angle glaucomatypical dosage for brinzolamideapply 1 drop into the affected eye 3 times daily.